СРОЧНО!!!! ДАМ 45 баллов!!! Нужно решение и ответ. Created by zhidelevairina13. algebra-ru

Ответ : x ∈ (- ∞ ; 2,5] + - +_________[3]__________[7]__________Ответ : x ∈ [3 ; 7]

СРОЧНО!!!! ДАМ 45 баллов!!! Нужно решение и ответ...

zhidelevairina13 @zhidelevairina13

July 2022 1 8 Report

СРОЧНО!!!!
ДАМ 45 баллов!!!
Нужно решение и ответ

Answers & Comments

Universalka

Verified answer

$(\frac{1}{3})^{2x-1}\geq\frac{1}{81}\\\\(\frac{1}{3} )^{2x-1}\geq(\frac{1}{3})^{4}\\\\2x-1\leq4\\\\2x\leq 5\\\\x\leq2,5$

Ответ : x ∈ (- ∞ ; 2,5]

$2)(\frac{1}{8})^{x^{2}-10x }\geq(\frac{1}{8})^{-21}\\\\x^{2}-10x+21\leq0\\\\(x-7)(x-3)\leq 0$

+ - +

_________[3]__________[7]__________

Ответ : x ∈ [3 ; 7]

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